Dictionary » P » Permeability




(1) The property or state of being permeable (as by osmosis or diffusion).

(2) The property of a porous material to permit a liquid or gas to pass through.

(3) (geology) The ability of a rock, soil or sediment to transmit water.

(4) (physics) Magnetic permeability.


Word origin: LL permeābilis, equiv. to permeā(re) to permeate.
Related forms: permeable (adjective).

Related terms:

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Main Factors that Affect Clinical Consequence of Toxicity

... in species may also affect the likelihood of toxicosis. Age and size of the animal are primary factors affecting toxicosis, as membrane permeability and hepatic and renal clearance capabilities vary with age, species, and health. And Nutritional and dietary factors, hormonal and health ...

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by 2444256703
Thu Jan 29, 2015 7:30 am
Forum: Molecular Biology
Topic: Main Factors that Affect Clinical Consequence of Toxicity
Replies: 0
Views: 303

Re: Urea and membrane permeability of RBC

I realize I am a few years late, but I see a lot of misinformation on this topic on the web, so I think it is important. Red blood cells have a lot of urea transporters and a lot of aquaporins (water channels). That is how urea and water get into the red blood cell. It is not the urea itself going i...

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by kidprof
Thu Aug 08, 2013 8:18 pm
Forum: Cell Biology
Topic: Urea and membrane permeability of RBC
Replies: 2
Views: 45177

what is the relationship between hemolysis & molecular weigh

is it true that as the lipid water partition coefficient increases, the permeability of lipid increases and the permeability of water lowers. does that mean that a substance w/ a high lipid water partition coeffecient will be able to go through the cell membrane ...

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by Fa23
Sat Sep 22, 2012 11:35 pm
Forum: Physiology
Topic: what is the relationship between hemolysis & molecular weigh
Replies: 1
Views: 4500

Oxygen Only Metabolism

how does metabolic activity affect k permeability?

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by ozil
Sun Feb 12, 2012 6:35 pm
Forum: General Discussion
Topic: Oxygen Only Metabolism
Replies: 3
Views: 1399

Re: speed of osmosis?

... smaller molecules diffuse faster than larger molecules. Think about the relationship of diffusion and osmosis. In addition to diffusion, membrane permeability is a factor -- that's Jack's cats and elephants metaphor. The combination of diffusion rate and membrane permeability determines the rate ...

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by jonmoulton
Thu Feb 09, 2012 4:07 pm
Forum: General Discussion
Topic: speed of osmosis?
Replies: 8
Views: 5534
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